import { app, BrowserWindow, screen } from 'electron';

import * as path from 'path';
import * as url from 'url';

import { ElectronService } from './shared/electron-service';

let win: BrowserWindow = null;

const args = process.argv.slice(1),
    serve = args.some(val => val === '--serve');

function createWindow(): BrowserWindow {
    const electronScreen = screen;
    const size = electronScreen.getPrimaryDisplay().workAreaSize;

    // Create the browser window.
    win = new BrowserWindow({
        x: 0,
        y: 0,
        width: size.width,
        height: size.height,
        webPreferences: {
            nodeIntegration: true,
            allowRunningInsecureContent: (serve) ? true : false,
        },
    });

    if (serve) {
        win.webContents.openDevTools();

        // Run the following from the Console tab of your app's DevTools.
        // require('devtron').install();
        // You should now see a Devtron tab added to the DevTools.

        require('electron-reload')(__dirname, {
            electron: require(`${__dirname}/node_modules/electron`)
        });

        win.loadURL('http://localhost:4200');
    } else {
        win.loadURL(url.format({
            pathname: path.join(__dirname, 'dist/index.html'),
            protocol: 'file:',
            slashes: true
        }));
    }

    // Emitted when the window is closed.
    win.on('closed', () => {
        // Dereference the window object, usually you would store window
        // in an array if your app supports multi windows, this is the time
        // when you should delete the corresponding element.
        win = null;
    });

    return win;
}

try {
    // IMPORTANT!!!
    // Setting to false to solve this issue: Renderer Node fs API stops working on page reload when allowRendererProcessReuse is true #22119
    // https://github.com/electron/electron/issues/22119
    app.allowRendererProcessReuse = false;

    // This method will be called when Electron has finished
    // initialization and is ready to create browser windows.
    // Some APIs can only be used after this event occurs.
    // Added 400 ms to fix the black background issue while using transparent window. More detais at https://github.com/electron/electron/issues/15947
    app.on('ready', () => {
        setTimeout(createWindow, 400);
        ElectronService.setupIpc();
    });

    // Quit when all windows are closed.
    app.on('window-all-closed', () => {
        // On OS X it is common for applications and their menu bar
        // to stay active until the user quits explicitly with Cmd + Q
        if (process.platform !== 'darwin') {
            app.quit();
        }

        ElectronService.removeAllListeners();
    });

    app.on('activate', () => {
        // On OS X it's common to re-create a window in the app when the
        // dock icon is clicked and there are no other windows open.
        if (win === null) {
            createWindow();
        }
    });

} catch (e) {
    // Catch Error
    // throw e;
}
